Micromechanics-based constitutive relations for post-localization analysis

Micromechanics-based constitutive relations for post-localization analysis

Micromechanics-based constitutive relations for post-localization analysis are obtained, to be used in a multi-surface representation of porous metal plasticity. Each yield surface involves a number of internal parameters. Hence, the constitutive relations must be closed with evolution equations for...

Full description

Bibliographic Details
Main Authors: Mohammad E. Torki, A. Amine Benzerga
Format: Article
Language:English
Published: Elsevier 2018-01-01
Series:MethodsX
Online Access:http://www.sciencedirect.com/science/article/pii/S2215016118301754
id doaj-355154aa12cd4c02bff95482d27195ca
record_format Article
spelling doaj-355154aa12cd4c02bff95482d27195ca2020-11-25T01:17:51ZengElsevierMethodsX2215-01612018-01-01514311439Micromechanics-based constitutive relations for post-localization analysisMohammad E. Torki0A. Amine Benzerga1Department of Aerospace Engineering, Texas A&M University, College Station, TX, 77843, United States; TEES Center for intelligent Multifunctional Materials and Structures (CiMMS), College Station, TX, 77843, United StatesDepartment of Aerospace Engineering, Texas A&M University, College Station, TX, 77843, United States; TEES Center for intelligent Multifunctional Materials and Structures (CiMMS), College Station, TX, 77843, United States; Department of Materials Science & Engineering, Texas A&M University, College Station, TX, 77843, United States; Corresponding author at: Department of Aerospace Engineering, Texas A&M University, College Station, TX, 77843, United States.Micromechanics-based constitutive relations for post-localization analysis are obtained, to be used in a multi-surface representation of porous metal plasticity. Each yield surface involves a number of internal parameters. Hence, the constitutive relations must be closed with evolution equations for the internal parameters. The latter are essential to describing the gradual loss of load-bearing capacity under shear-dominated loading. We also briefly discuss potential void closure due to void rotation and elongation in shear and show additional details regarding the simulations reported in a recent paper (A mechanism of failure in shear bands (2018) Extreme Mechanics Letters, 23, pp. 67-71.) The method can be more broadly used in a range of ductile failure problems involving combined tension and shear loadings. Method name: Post-localization analysis in shear, Keywords: Ductility, Void growth, Void coalescence, Lode angle, Triaxialityhttp://www.sciencedirect.com/science/article/pii/S2215016118301754
collection DOAJ
language English
format Article
sources DOAJ
author Mohammad E. Torki
A. Amine Benzerga
spellingShingle Mohammad E. Torki
A. Amine Benzerga
Micromechanics-based constitutive relations for post-localization analysis
MethodsX
author_facet Mohammad E. Torki
A. Amine Benzerga
author_sort Mohammad E. Torki
title Micromechanics-based constitutive relations for post-localization analysis
title_short Micromechanics-based constitutive relations for post-localization analysis
title_full Micromechanics-based constitutive relations for post-localization analysis
title_fullStr Micromechanics-based constitutive relations for post-localization analysis
title_full_unstemmed Micromechanics-based constitutive relations for post-localization analysis
title_sort micromechanics-based constitutive relations for post-localization analysis
publisher Elsevier
series MethodsX
issn 2215-0161
publishDate 2018-01-01
description Micromechanics-based constitutive relations for post-localization analysis are obtained, to be used in a multi-surface representation of porous metal plasticity. Each yield surface involves a number of internal parameters. Hence, the constitutive relations must be closed with evolution equations for the internal parameters. The latter are essential to describing the gradual loss of load-bearing capacity under shear-dominated loading. We also briefly discuss potential void closure due to void rotation and elongation in shear and show additional details regarding the simulations reported in a recent paper (A mechanism of failure in shear bands (2018) Extreme Mechanics Letters, 23, pp. 67-71.) The method can be more broadly used in a range of ductile failure problems involving combined tension and shear loadings. Method name: Post-localization analysis in shear, Keywords: Ductility, Void growth, Void coalescence, Lode angle, Triaxiality
url http://www.sciencedirect.com/science/article/pii/S2215016118301754
work_keys_str_mv AT mohammadetorki micromechanicsbasedconstitutiverelationsforpostlocalizationanalysis
AT aaminebenzerga micromechanicsbasedconstitutiverelationsforpostlocalizationanalysis
_version_ 1725145367776854016

Similar Items